Staff: Mentor

Why do you think you have to do an epsilon-delta proof? If the problem doesn't say that you have to prove it using delta and epsilon, then why assume that it does? What properties (actually theorems) do you have available? For instance, is there a theorem about the limit of a sum of functions? Product of functions? You said you found nothing useful, but maybe there was something there that could be used and you didn't recognize it.